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Finding the Fourth Proportional to 29,322.89, 40,465.65 and 15,894.08

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Solution

The fourth proportional to 29,322.89, 40,465.65 and 15,894.08 is: 21,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,322.89 : 40,465.65 = 15,894.08 : x
  2. Step 2: Convert to fraction form
    29,322.89/40,465.65 = 15,894.08/x
  3. Step 3: Cross multiply
    29,322.89x = 40,465.65 × 15,894.08
  4. Step 4: Simplify right side
    29,322.89x = 643,164,271.12
  5. Step 5: Solve for x
    x = 643,164,271.12/29,322.89
  6. Step 6: Final answer
    x = 21,933.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.